Improvement in door-stop



WILLIAM MAY, or BINGHAMTON, NEW YORK.

Leaerspatgnp- No. 83,650, dem Noma e, ieee.

miroir-amm' nt noon-STOP.

w The Schedule referred to in these Letters Patent and making pgn-t ef the lame.

To all whom it mary concern.-

Beit known that I', WILLMM MAY, of Binghamton, in the county of Broome, and State of New York, have invented a new and useful Improvement on-Apparatus for Holding Doors in. Position whenv Open;y and I do hereby declare that the following is a full, clear, and exact description of theconstruction and operation of the-same,reference beinghad to the accompanying drawings, making a part of this specication, in which- Figure 1 is -agpcrsp ctie fiemrepesenting-the ap paratus attachedto the door.` Figures 2 and 3 show the plate and slide detached. Similar letters of reference indicate corresponding parts in each figure.

The nature of my invention consists of a plate and iction-slde, to which slide is attached a ca n, which is brought in contact with the floor by pressing it down by closing the door in, the usual manner.

To enable others to make and-use my invention, I will proceed to describe its construction and operatic I construct the. plate A and slide B of cast-iron or other suitable material. In the centre I make a depression, O, for the spring D, which is made in the form' plate, and on lts lower end I make a slotted foot for form, or half o val, with its axis above thecentre, that it may come in contact with the floor in the required position.

7' I cover the of the cam with India rubber, and

, make a projection, G, near the foot of the slide, for the foot, tol press it in contact with the floor. When the door is open, as shown `in iig. 1, and I desire to retain it in any position, I place the foot upon the projection G, and press down the slide, which is held in this position by friction 'against the guards E E, as described above.l The door will then be held where placed, and cannot be .moved either forwarder backwarwl "man using-m fercwelough te rotate the cam, and bring one of its longer'axes into aV vertical position, immediately under the pivot upon which it -(the cani) revolves, as shown at F, gll, in

dotted lines, thereby rais' g the slide to a'corre' spending height.v

relying for their eiiciency upon friction created 'by pressing a round roller upon the ioor, by means of a spring; but my invention involves an entirely different principle. Itl operates as though the slide B, when pressed down by the foot,were held by a ratchet, that is, so far as holding the door open -is concerned; but to avoid the necessity of stooping down and disengaging the ratchet, I hold the slide by friction. This arrangement also holds the cam up after it has passed its longer diaieter, thereby making the device automatic in its operation'.

' Having thus describedmy invention,

`What I claim, and desire to secure by Letters Pat'- ent, isi The am F and spng D, in combination #hun 4che.- slide B andJ plate A, as; arranged and showm'forfgthe wnlLiAM purpose set forth.

Witnesses: 1

A. Dimm, G. Pmmzm.

ain aware that there are door-fastenings in use, 

